JP6221173B2 - Vehicle, positioning device and charging equipment - Google Patents

Description

  The present invention relates to a vehicle, a positioning device, and a charging facility.

In general, a vehicle equipped with a rubber tire such as an electric vehicle, an electric bus, a monorail car, and the like that is mounted with a battery travels in a state where the grounding portion is a rubber tire and is insulated from the ground. In this case, when leakage of supplied power to the vehicle body or the like occurs during external power supply, the vehicle body may be charged.
Therefore, a mechanism has been proposed in which a grounding plate is provided at a predetermined position of a vehicle guide mechanism (rail), a grounding shoe is attached to the vehicle body, and the electric charge charged when the vehicle is stopped is discharged (for example, see Patent Document 1). The vehicle described in Patent Document 1 is intended for a vehicle that travels along a guide mechanism, and a grounding shoe that extends in a horizontal direction from the vehicle contacts a grounding plate that is integrated with the guide mechanism and is provided in a vertical direction on the ground surface. By doing so, the vehicle body can be grounded.

Japanese Utility Model Publication No. 5-25901

  However, since the vehicle described in Patent Document 1 is premised on a vehicle that travels along the guide mechanism as described above, it cannot be applied to a vehicle that travels without a track, such as a general electric vehicle or an electric bus. . In addition, if the grounding shoe is extended from the vehicle body of an electric vehicle or electric bus traveling on a general road and directly touches the road surface, the grounding shoe always travels with its tip in contact with the road surface. For this reason, not only does the maintenance cost of the grounding shoe increase due to wear or the like, but dust and the like are generated, which may cause environmental problems.

  The present invention has been made in view of such circumstances, and an object of the present invention is to reduce the maintenance and environmental burden associated with wear and the like while the vehicle travels on a general road without a track. An object of the present invention is to provide a vehicle and a charging facility that can prevent charging of the main body.

In order to solve the above-described problem, an aspect of the vehicle detection device according to the present invention is a vehicle that travels on a road surface with rubber tires, and extends downward from the vehicle main body portion and separated from the road surface. as well as, e Bei and a ground shoe having a tip contact portion can be electrically grounded in contact with the grounding portion that protrudes on the road surface, the vehicle body portion, an upper surface of the vehicle body portion A power receiving unit for receiving power by making electrical contact with external equipment disposed above the vehicle body, comprising a power receiving unit provided on an upper surface of the vehicle main body unit, wherein the contact unit is It is a vehicle provided in a position different from the power reception unit in the front-rear direction .
According to this aspect, it is possible to contact the grounding portion provided so as to protrude from the road surface while avoiding the contact between the tip of the grounding shoe and the road surface at all times. For this reason, it is possible to prevent charging by electrically grounding the vehicle body while reducing maintenance and environmental burden associated with wear of the grounding shoe. According to this aspect, it is possible to prevent the power receiving unit from coming into contact with the external equipment and being damaged or damaged when the height of the vehicle rises on the grounding unit protruding from the road surface.

Further, according to one aspect of the present invention, in the vehicle described above, the contact portion is provided on the road surface so as to project the rubber tire in order to position the rubber tire in a charging facility that is installed on the road surface and supplies electric power to the host vehicle. A contact with the grounding portion provided on a hump positioned in front of the rubber tire enables electrical grounding.
According to this aspect, when the rubber tire is positioned based on the positioning device that protrudes on the road surface, the contact between the contact portion and the grounding portion is ensured at the same time. Can be made. Further, the vehicle main body can be stably grounded when positioned by a hump provided for the purpose of guiding the vehicle to a predetermined position of the charging facility.

One embodiment of the present invention is characterized in that, in the vehicle described above, the grounding shoe is provided adjacent to a tire house that covers a rubber tire of the vehicle main body.
According to this aspect, it is possible to easily adjust the attachment position and the length of the grounding shoe in the vehicle main body while referring to the positional relationship with the rubber tire accommodated in the tire house.

According to another aspect of the present invention, in the above vehicle, the grounding shoe includes a conductive wire that electrically connects the contact portion and the vehicle main body, and a flexible material that covers the conductive wire. It is characterized by.
According to this aspect, the grounding shoe is flexibly deformed in accordance with the contact with the grounding portion, can maintain good electrical contact, and can suppress damage to the grounding shoe.

Another aspect of the present invention is a positioning device comprising a hump that protrudes on a road surface to position a tire of a vehicle, the first hump positioning the front of the tire, A second hump for positioning the rear of the tire and a contact portion provided at a tip of a grounding shoe extending downwardly from the vehicle main body of the vehicle so as to be separated from the road surface are electrically grounded. have a ground portion, the ground portion, the ground portion to at least one of the first hump and the second hump is provided a positioning device.

  Another embodiment of the present invention is a charging facility including the positioning device described above and a power supply unit that supplies power by contacting a power reception unit provided in the vehicle.

  According to the above vehicle, positioning device, and charging facility, the vehicle body can be prevented from being charged while reducing maintenance and environmental burdens associated with wear, etc., even though the vehicle travels on a general road without a track. Can do.

It is the schematic which shows an example of the bus operation management system which concerns on 1st Embodiment. 1 is a schematic side view of a vehicle according to a first embodiment. 1 is a schematic cross-sectional view of a vehicle according to a first embodiment. It is a figure which shows the structure of the grounding shoe which concerns on 1st Embodiment. It is a side surface schematic diagram of the positioning device which concerns on 1st Embodiment. It is an upper surface schematic diagram of the positioning device which concerns on 1st Embodiment. It is a 1st figure explaining the effect | action by the vehicle which concerns on 1st Embodiment. It is a 2nd figure explaining the effect | action by the vehicle which concerns on 1st Embodiment. It is a cross-sectional schematic diagram of the vehicle which concerns on the modification of 1st Embodiment.

<First Embodiment>
Hereinafter, an example of the vehicle according to the first embodiment will be described with reference to the drawings.
FIG. 1 is a schematic diagram illustrating a functional configuration of a vehicle according to the first embodiment.
As shown in FIG. 1, the vehicle 1 according to the first embodiment is an electric bus that is equipped with a battery (lithium ion battery) 35 and travels by electric power.
The vehicle 1 that is an electric bus includes a grounding shoe 10, rubber tires 20, a vehicle main body 30, a power receiving unit 32, a controller 33, a battery control unit (BMU: Battery Management Unit) 34, a battery 35, an inverter 36, and an electric motor (motor) 37. , An auxiliary machine 38 and a communication unit 39 are provided.
The vehicle 1 generates power (rotational force) by supplying the electric power stored in the battery 35 to the electric motor 37 via the inverter 36. The vehicle 1 is a mechanism that travels by transmitting the rotational force generated by the electric motor 37 to the rubber tire 20 and rotating it. Further, the vehicle 1 also uses the electric power stored in the battery 35 for driving the auxiliary machine 38. Here, the auxiliary machine 38 is, for example, in-vehicle equipment such as lighting and air conditioning mounted on the vehicle 1.

The charging facility 7 is an infrastructure facility fixedly installed on the ground, and includes a quick charger 70, a power feeding unit 71, and a communication unit 72, and can supply power to the vehicle 1.
As shown in FIG. 1, the power receiving unit 32 of the vehicle 1 is in electrical contact with the power feeding unit 71 of the charging facility 7 that is an external facility, and receives the power supplied from the quick charger 70. The power received through the power receiving unit 32 is transmitted to the battery 35.
The charging facility 7 is designed such that when the vehicle 1 stops at a predetermined position of the charging facility 7, the power receiving unit 32 contacts the power feeding unit 71. When the vehicle 1 stops at a predetermined position and the charging facility 7 starts charging, first, the controller 33 of the vehicle 1 and the quick charger 70 of the charging facility 7 are wirelessly connected via the communication unit 39 and the communication unit 72. Establish communication. Thereafter, the controller 33 controls the charging process of the battery 35 via the BMU 34 while performing mutual communication with the quick charger 70.

  The vehicle 1 according to the present embodiment is not limited to the electric bus as described above, and may be a vehicle that travels on a general road such as an electric private car, a taxi, or a truck. Further, the present invention is not limited to ordinary roads and can be applied to vehicles that travel without a track. Also, a so-called hybrid vehicle equipped with a battery and an engine may be used.

FIG. 2 is a schematic side view of the vehicle according to the first embodiment.
The vehicle 1 that is an electric bus includes a grounding shoe 10, a rubber tire 20, a vehicle main body 30, a tire house 31, and a power receiving unit 32. The vehicle 1 travels on the road surface R as a general road.
As shown in FIG. 2, the grounding shoe 10 is attached so as to extend downward (−Z direction) from the lower surface of the vehicle main body 30 (the surface facing the road surface R, FIG. 2). However, as shown in FIG. 2, the length of the grounding shoe 10 is adjusted so that its tip (contact portion 100, FIG. 4) is separated from the road surface R (for example, about 80 mm). Specifically, from the bottom surface of the vehicle body to the height H from the road surface R to the bottom surface 30b of the vehicle body determined by the separation distance W1 from the bottom surface 30b of the vehicle body to the center of the axle 21 and the tire diameter W2 of the rubber tire 20. The length of the grounding shoe 10 is determined so that the distance L to the tip of the shoe 10 becomes small (H> L).
The grounding shoe 10 is attached so as to be adjacent to a tire house 31 provided in the vehicle main body 30. Here, the tire house 31 is a space that is provided in the vehicle main body 30 and accommodates the rubber tire 20. By doing in this way, the attachment position and the length of the grounding shoe 10 in the vehicle main body 30 can be easily adjusted while referring to the positional relationship with the rubber tire 20.

  The ground shoe 10 is provided in the vehicle main body 30 so as to have a position different from that of the power receiving unit 32 in the front-rear direction. Specifically, as shown in FIG. 2, the grounding shoe 10 is provided in the tire house 31 on the rear side (−X direction side) of the power reception unit 32. Thus, the effect | action with respect to providing the grounding shoe 10 and the power receiving part 32 so that a position may differ in the front-back direction is demonstrated later.

As shown in FIG. 2, the vehicle 1 according to the present embodiment constitutes a connection bus in which the vehicle main body 30 and the connection vehicle main body 30c are connected via the connection 30a. With such a configuration, each of the front vehicle main body 30 and the rear connected vehicle main body 30c can travel while independently changing directions.
In this case, it is desirable that the grounding shoe 10 is provided not on the connected vehicle main body 30c positioned behind the connecting portion 30a but on the front of the vehicle main body 30 on which the power receiving unit 32 is mounted. By doing so, the positional relationship between the grounding shoe 10 and the power receiving unit 32 is fixed in the vehicle main body 30, so that the driver of the vehicle 1 can position and ground the rubber tire 20 by the positioning device 5. And the contact between the power receiving unit 32 and the power feeding unit 71 can be stably performed.

FIG. 3 is a schematic cross-sectional view of the vehicle according to the first embodiment.
FIG. 3 is a schematic cross-sectional view of the vicinity of AA ′ in FIG. Here, as shown in FIG. 3, two grounding shoes 10 are provided symmetrically on the inner side of the two rubber tires 20 so as to be adjacent to the tire house 31. Thus, by arranging the grounding shoe 10 inside the vehicle 1, it is possible to prevent accidents and damage due to contact with an unintended thing of the grounding shoe 10 during traveling.

FIG. 4 is a diagram illustrating the structure of the grounding shoe according to the first embodiment.
Next, the structure of the grounding shoe 10 will be described with reference to FIG.
As shown in FIG. 4, the grounding shoe 10 includes a contact portion 100 at a lower end (−Z direction). The contact portion 100 is a part of the lead wire 100 a and is a tip portion exposed from the coating portion 101. The conducting wire 100a is a wire-like conductor, and electrically connects the contact portion 100 and the vehicle main body portion 30. With such a configuration, the contact part 100 comes into contact with the grounding part 500 (FIGS. 5 and 6) provided so as to protrude on the road surface R, so that the vehicle main body part 30 can be electrically grounded.
Moreover, the film part 101 is a flexible material and is formed so as to cover the conductive wire 100a. By doing in this way, the grounding shoe 10 is flexibly deformed according to the contact with the grounding part 500 (FIGS. 5 and 6) of the contact part 100 and can maintain good electrical contact. 10 breakage or the like can be suppressed.

FIG. 5 is a schematic side view of the positioning device according to the first embodiment.
FIG. 6 is a schematic top view of the positioning device according to the first embodiment.
As shown in FIG. 5, the positioning device 5 includes humps 50 a and 50 b provided on the road surface R so as to protrude by a height h in the + Z direction. The positioning device 5 is provided for positioning the rubber tire 20 of the vehicle 1 in the charging facility 7. Specifically, the two humps 50 a and 50 b are attached on the road surface R with a separation distance corresponding to the size of the rubber tire 20 of the vehicle 1. Thereby, the rubber tire 20 of the vehicle 1 is positioned by getting over one of the humps 50a and 50b provided so as to fit between the humps 50a and 50b.
Since the rubber tire 20 of the vehicle 1 is positioned by the positioning device 5, the vehicle 1 can stop at a position where the power receiving device 32 just contacts the power feeding portion 71 of the charging facility 7.

Further, as shown in FIGS. 5 and 6, the hump 50a includes a grounding portion 500 made of a conductor on a surface protruding by a height h (FIG. 5) in the + Z direction.
The grounding portion 500 is maintained at the ground potential, and comes into contact with the contact portion 100 provided at the tip of the grounding shoe 10 extending downward from the vehicle main body portion 30 of the vehicle 1 so as to be separated from the road surface R. The vehicle main body 30 is electrically grounded.

Note that the positioning device 5 according to the present embodiment is not limited to the above-described aspect.
For example, although the positioning device 5 has been described as performing positioning of one rubber tire 20 with two humps 50a and 50b, in another embodiment, the positioning device 5 is a positioning device 5 according to another embodiment. For example, the rubber tire 20 may be positioned by only one hump 50a.
Further, in the above description, an example in which the ground contact portion 500 is provided in the hump 50 a that positions in front of the rubber tire 20 is shown, but the present invention is not limited thereto, and for example, a hump that positions in the rear of the rubber tire 20. The grounding part 500 may be provided on the upper surface of 50b. In this case, the position where the grounding shoe 10 is attached to the vehicle main body 30 can be adjusted according to the hump on which the grounding unit 500 is provided.

  Here, the length of the grounding shoe 10 is the distance from the bottom surface 30b of the vehicle body to the tip of the grounding shoe 10 (contact portion 100) in consideration of the height h of the humps 50a and 50b shown in FIGS. L (FIG. 2) and the height h (FIG. 5) from the road surface R to the ground contact portion 500 are determined to be equal to or higher than the height H (FIG. 2) from the road surface R to the vehicle body bottom surface 30b. Is done. That is, the length of the grounding shoe 10 is determined so as to satisfy the relational expression L + h ≧ H.

FIG. 7 is a diagram for explaining the operation of the vehicle according to the first embodiment.
When the vehicle 1 stops at a predetermined position of the charging facility 7, the rubber tire 20 is positioned by the positioning device 5. Specifically, as shown in FIG. 7, the positioning device 5 positions the rubber tire 20 so that the vehicle 1 stops at a predetermined position of the charging facility 7. Here, the predetermined position is a position where the power receiving unit 32 mounted on the vehicle main body 30 comes into contact with the power feeding unit 71 of the charging facility 7 (FIG. 7).

FIG. 8 is a second diagram illustrating the operation of the vehicle according to the first embodiment.
FIG. 8 is an enlarged view of the vicinity of the grounding shoe 10 of the vehicle 1 stopped at the charging facility 7 in FIG.
As described above, the length of the grounding shoe 10 is such that the sum of the distance L from the vehicle body bottom surface 30b to the contact portion 100 and the height h from the road surface R to the grounding portion 500 is the road surface R to the vehicle body bottom surface 30b. The height is determined to be equal to or higher than H. Therefore, when the rubber tire 20 is positioned by the positioning device 5, as shown in FIG. 8, the grounding shoe 10 is deformed so as to bend in response to contact with the grounding part 500 provided on the upper surface of the hump 50a. The contact part 100 (FIG. 4) provided at the tip is just in electrical contact with the grounding part 500. Therefore, while the charging facility 7 performs the charging process on the vehicle 1 (battery 35 (FIG. 1)), the vehicle main body 30 is stable because the contact portion 100 and the grounding portion 500 always have a contact. Maintain a grounded state. Thereby, even if a leakage occurs for some reason during the charging process, the vehicle main body 30 is not charged, and the possibility of an electric shock of a passenger or the like can be reduced.

  Further, the vehicle 1 according to the present embodiment is configured only by attaching the grounding shoe 10 to the vehicle main body 30 of the vehicle 1 as an electric bus. Similarly, the positioning device 5 is configured only by providing a grounding portion 500 as a conductor plate in the positioning device 5 (hump 50a) originally provided integrally with the charging equipment 7. Thus, according to the vehicle 1 and the positioning device 5 according to the present embodiment, it is possible to construct the grounding configuration of the vehicle 1 more simply by effectively utilizing the existing equipment.

  Furthermore, in the present embodiment, the tip (contact portion 100) of the grounding shoe 10 can be in contact with the grounding portion 500 protruding from the road surface R, but its length is adjusted so as to be separated from the road surface R. ing. As a result, the grounding shoe 10 avoids contact with the road surface R while traveling on a general road or the like of the vehicle 1, wear and failure due to contact with the outside, maintenance based on these, and environmental aspects. The burden can be reduced.

  Moreover, in this embodiment, as shown in FIG. 3, two grounding shoes 10 are installed symmetrically. As a result, the vehicle 1 can have redundancy in ensuring contact between the ground shoe 10 and the ground portion 5. Specifically, even if the vehicle main body 30 stops in a state where it is tilted left and right (± Y direction) around the + Z direction, at least one of the grounding attached to the + Y direction side or the −Y direction side The shoe 10 can contact the grounding part 5.

  In addition, as described above, the grounding shoe 10 is provided in the tire house 31 on the rear side (−X direction side) of the power reception unit 32 and is provided so that the position is different in the front-rear direction (± X direction) of the vehicle 1. It has been. Assuming that the grounding shoe 10 and the power receiving unit 32 are provided in the same position in the front-rear direction of the vehicle 1, the rubber tire 20 of the vehicle 1 rides on the humps 50a and 50b and the vehicle main body 30 is lifted most. Since the power receiving unit 32 and the power feeding unit 71 exist in the part, there is a high possibility that the power receiving unit 32 and the power feeding unit 71 are in strong contact and are damaged. Therefore, by arranging the grounding shoe 10 and the power receiving unit 32 at different positions in the front-rear direction of the vehicle 1, a part where the humps 50 a and 50 b are climbed and the height rises, the power feeding unit 71 and the power receiving unit 32. Can be separated from each other and the power receiving unit 32 and the power feeding unit 71 can be prevented from being damaged or damaged.

  As described above, according to the vehicle 1 according to the first embodiment, although the vehicle travels on a general road, the vehicle main body is stably and electrically reduced while reducing maintenance and environmental burdens associated with wear and the like. Can be grounded.

FIG. 9 is a schematic cross-sectional view of a vehicle according to a modification of the first embodiment.
The vehicle 1 according to the first embodiment described above can be modified as follows.
For example, as shown in FIG. 9, the vehicle 1 according to the modification may have an aspect in which only one ground shoe 10 is provided at the center of the vehicle 1. By doing in this way, the contact of the contact part 100 and the grounding part 500 (FIG. 5, FIG. 6) is ensured, without depending on the right-and-left inclination of the vehicle main body part 30. Further, the number of grounding shoes 10 can be reduced and the cost can be reduced.

  In addition, although the above-mentioned vehicle 1 and the positioning apparatus 5 were demonstrated as a mechanism which guides the position of the vehicle 1 in the charging equipment 7 which supplies electric power to the vehicle 1, in other embodiment, it is limited to such an aspect. It will never be done. For example, the positioning device 5 may be used as a “car stop block” provided on a road surface in a parking lot or the like. As a result, the grounding of the vehicle main body 30 can be ensured not only when the vehicle 1 is charged but also when the vehicle is stopped normally, so that the possibility of electric shock due to charging can be further reduced.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof, as long as they are included in the scope and gist of the invention.

DESCRIPTION OF SYMBOLS 1 ... Vehicle 10 ... Grounding shoe 100 ... Contact part 100a ... Conductor 101 ... Film part 20 ... Rubber tire 21 ... Axle 30 ... Vehicle main-body part 30a ... Connection Part 30b: Vehicle body bottom face 30c: Articulated vehicle body part 31 ... Tire house 32 ... Power receiving part 33 ... Controller 34 ... Battery control part 35 ... Battery 36 ... Inverter DESCRIPTION OF SYMBOLS 37 ... Electric motor 38 ... Auxiliary machine 39 ... Communication unit 5 ... Positioning device 50a, 50b ... Hump 500 ... Grounding part 7 ... Charging equipment 70 ... Quick charger 71 ... Power supply unit 72 ... Communication unit

Claims (6)

A vehicle that runs on a road with rubber tires,
A vehicle body,
A grounding shoe that extends downward from the vehicle main body, is spaced apart from the road surface, and has a contact portion at the tip that can contact and electrically ground the grounding portion provided to protrude on the road surface;
Bei to give a,
The vehicle main body is a power receiving unit for receiving power by making electrical contact with an external facility disposed above the upper surface of the vehicle main body, and the power receiving unit provided on the upper surface of the vehicle main body. Prepared,
The contact portion is provided in the vehicle main body portion so as to have a position different from the power receiving portion in the front-rear direction . The contact portion is
In a charging facility installed on the road surface for supplying electric power to the host vehicle, the rubber tire protrudes on the road surface for positioning, and contacts the grounding portion provided on the hump for positioning in front of the rubber tire. The vehicle according to claim 1, wherein the vehicle can be electrically grounded . The grounding shoe is
The vehicle according to any one of claims 1 to 2 , wherein the vehicle is provided adjacent to a tire house that covers a rubber tire of the vehicle main body. The grounding shoe is
A conducting wire for electrically connecting the contact portion and the vehicle body portion;
A flexible material covering the conductive wire;
The vehicle according to any one of claims 1 to 3 , characterized by comprising: A positioning device comprising a hump protruding from a road surface for positioning a vehicle tire,
A first hump for positioning the front of the tire; a second hump for positioning the rear of the tire;
From the vehicle body portion of the vehicle, have a ground portion which electrically grounding contact with the contact portion provided on the distal end of the ground shoe extending downwardly so as to be separated from the road surface,
The positioning device , wherein the grounding unit is provided with at least one of the first hump and the second hump . A positioning device according to claim 5 ;
A power feeding unit that supplies power in contact with a power receiving unit provided in the vehicle;
Charging equipment comprising.

Images